CCNA Exploration Semester 1-Chapter 1 docx

Living in a Network Centric World CCNA Exploration Semester 1 Chapter 1 Overview 2 Remember, we are just beginning to herd the cats. Much of this will become clearer LATER! The more we learn, the more all of this will come into focus! Introduction 3  The globalization of the Internet has succeeded faster than anyone could have imagined.  The manner in which social, commercial, political and personal interactions occur is rapidly changing to keep up with the evolution of this global network. Network Centric World Using Networks in our lives 5 Using Networks in our work 6  Networks are no longer just a luxury, but a necessity in conducting business for businesses, governments, educational institutions, etc. Using Networks in our work 7 Using Networks in outside of work 8  More than just connecting cables… (that’s the easy part)  Today’s networks are complex and sophisticated combination of protocols, software, hardware, algorithms, configurations, policies, and more  Security  Privacy Networks – Behind the scenes 9  Privacy  24 x 7 availability and access  Quality of Service  Video on Demand  Voice over IP (over the Internet)  Redundancy and backup  Mission critical applications  Productivity and user expectations  Wireless Networks Supporting the Way We Live 10  The original idea about networks and the Internet was about sharing computer resources – computer-to-computer communications.  That quickly changed to people-to-people communications.  Early networks were limited to character-based information.  Communications between computers was not common nor easy to do. [...]... between many different types of devices: Voice video streams Text graphics 11 The Global Community Technology helps to create a world in which national borders, geographic distances, and physical limitations become less relevant 12 Networks are integral in our daily lives http://www.youtube.com/watch? v=fQKNvPn3V8&mode=related&search= 13 14 Examples of Today’s Popular Communication Tools Instant Messaging:... as: file transfer voice video communication (web cam) chat 15 Weblogs (blogs) Weblogs (Blogs) are web pages that are easy to update and edit Unlike commercial websites, which are created by professional communications experts, blogs give anyone a means to communicate their thoughts to a global audience without technical knowledge of web design 16 Wikis Wikis are web pages that groups of people can edit... knowledge on a particular subject 17 Podcasting Podcasting is an audio-based medium that originally enabled people to record audio and convert it for use with iPods Podcasting allows people to deliver their recordings to a wide audience The audio file is placed on a website (or blog or wiki) where others can download it and play the recording on their computers, laptops, and iPods 18 Collaboration Tools Collaboration... connected to a shared system can speak to each other, share text and graphics, and edit documents together 19 Supporting Learning E-Learning On-line discussions and access to resources On-line assignments and assessments Blended distance learning 20 Packet Tracer Note: These screens are not related 21 Networks Supporting the Way We Work Intranets, private networks in use by just one company, enable businesses... use of telecommunication protocol and computer software for using and managing the network, and the establishment of operation policies and procedures related to the network.” 30 Devices on a network 31 Network Medium 32 Network Applications and Protocols Some other applications: DNS, DHCP, HTTP, SMTP, FTP Some other protocols TCP/IP suite of protocols Ethernet Routing protocols 33 Converged Networks . Living in a Network Centric World CCNA Exploration Semester 1 Chapter 1 Overview 2 Remember, we are just beginning to herd the cats. Much of this will. Live http://www.youtube.com/watch?v= CQzUsTFqtW0 11  Today’s networks carry between many different types of devices: Voice video streams Text graphics The Global Community 12  Technology helps to create a. lives http://www.youtube.com/watch? 13 http://www.youtube.com/watch? v=fQKNvPn3V- 8&mode=related&search= 14 Examples of Today’s Popular Communication Tools 15  Instant Messaging: AOL AIM